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Table 4 Atlantoaxial linear measurements (appliance-specific evaluation)

From: Therapeutic effects of functional orthodontic appliances on cervical spine posture: a retrospective cephalometric study

Linear parameter (mm) Active group p-values BJA group p-values
McRae (Ba-opisthion) 0.25 ± 1.46 0.3291 0.38 ± 2.37 0.4199
Chamberlain (opisthion-PNS) 1.28 ± 2.33 0.0034* 0.69 ± 2.95 0.2394
McGregor (PNS-SO) 1.12 ± 2.80 0.0283* -0.29 ± 4.00 0.7127
CVT 1.78 ± 2.66 0.0006** 0.33 ± 2.05 0.4174
OPT 4.74 ± 3.73 < 0.0001** 2.69 ± 4.01 0.0021*
AT -0.02 ± 1.92 0.9589 -0.67 ± 2.72 0.3543
Ranawat (mpA-maA-maX) 0.35 ± 1.39 0.2005 -0.08 ± 1.11 0.7639
Powers ratio (SO-D/Ba-apA) 1.74 ± 6.31 0.1564 -3.18 ± 6.11 0.0477*
Chamberlain’s distance -0.13 ± 2.35 0.7466 -0.21 ± 2.15 0.6200
Redlund-Johnell/Petersson (McGregor-mC2) 2.07 ± 2.29 < 0.0001** 0.85 ± 2.40 0.0835
  1. Data are given as mean differences (± SD) between posttreatment and baseline values.
  2. p-values refer to intragroup comparisons.
  3. Asterisks (* or **) indicate significant (p < 0.05) or highly significant (p < 0.001) differences.